2003 GMC Sierra 2500 P0120 P2135

2003 GMC Sierra 2500 P0120 P2135

GMC Sierra On the 2003 GMC Sierra, the P0120 and P2135  are both pointing to a problem with the throttle position sensor. On this vehicle, the throttle position sensor is built into and part of the Throttle Body assembly. Carefully inspect the electrical connector and wire harness for any loose, broken or damaged wires. If no problems are found, many time a good cleaning can solve this problem. Using some throttle cleaner and a toothbrush and shop rag, try to clean as much build-up from the throttle bore, plate, and plate…

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2007 Cadillac Escalade P0121 Throttle Body

2007 Cadillac Escalade P0121 Throttle Body

Cadillac Escalade On the 2007 Cadillac Escalade, the P0121 is pointing to a problem with the Throttle Position Sensor. Inspect thoroughly for any type of leak or restriction at the throttle body and throttle plate. Check for air leaks at throttle body mounting area and intake manifold sealing surfaces. Inspect throttle body for dirt, debris, and coking. If any doubts, a good throttle body cleaning can sometimes cure this code. With the use of a toothbrush and some throttle cleaner, get as much build up off the throttle bore and…

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2008 Chevy Tahoe P0121 Throttle Sensor

2008 Chevy Tahoe P0121 Throttle Sensor

Chevy Tahoe On the 2008 Chevy Tahoe, the P0121 is a fairly straight forward code pointing to a fault with the Throttle Position Sensor. On this vehicle, the TPS is part of the Throttle Body Assembly. Inspect for the following conditions: Vacuum hoses for splits, kinks, and proper connections Inspect thoroughly for any type of leak or restriction Air leaks at throttle body mounting area and intake manifold sealing surfaces Throttle body for dirt, debris, and coking. (Many times a god cleaning of the throttle plate with the use of…

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2006 Suzuki Forenza P2135 Throttle Sensor

2006 Suzuki Forenza P2135 Throttle Sensor

Suzuki Forenza On the 2006 Suzuki Forenza, the P2135 is a fairly straight forward code that is pointing to a fault with the Throttle Position Sensor. The TPS is mounted to the side of the Throttle Body. Carefully inspect the electrical connector and wire harness, looking for any loose, broken or damaged wires. Inspect the Throttle Plate and make sure it moves freely with no binding. Many times this can be excessive build-up on the Throttle Plate. Use some throttle cleaner and a toothbrush to clean the plate and the pivot points…

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